BB-UN300 Bottom Bracket 68x123mm with fixing bolts.
Replacement BB for a mountain bike, Square Taper.
Specifications
BB-UN300
68=MTB shell width
123=axle length
Mfr Claimed Weight
TBC
Shimano BB-UN300 Square Taper Bottom Bracket - 68x123mm
BB-UN300 Bottom Bracket 68x123mm with fixing bolts.
Replacement BB for a mountain bike, Square Taper.
Specifications
BB-UN300
68=MTB shell width
123=axle length
Mfr Claimed Weight
TBC